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Claude Code vs OpenAI Codex

3D scene with characters

OmedTheVibeCoder@OmedVibeCodes

Harness comparison45 likes3,924 views

GPT-5.6 Sol at xHigh effort builds the same 3D scene in Claude Code and in Codex. The author says that over several tests Claude Code consistently gave the better result: visible characters and a more complete scene.

Same model in every harness: GPT-5.6 Sol. More Claude Code vs OpenAI Codex. All harness comparisons.

Harnesses and models

HarnessModelEffort
Claude CodeGPT-5.6 SolOpenAIxHigh
OpenAI CodexGPT-5.6 SolOpenAIxHigh

Details

KindSide-by-side (same post, same prompt)
Task3D scene with characters
Author’s verdictClaude Code consistently produces the better result, which looks like a Codex harness problem. — @OmedVibeCodes’s view (paraphrased)
Category3D & Shaders
ModeNot stated
Posted
Video length14.6 s
Likes / views45 / 3,924 · as of Oct 18, 2026
Bookmarks20
NotesThe post doesn't say which side of the video is which harness.
SponsoredNo
Original postx.com/OmedVibeCodes/status/2081467088128884840

Related

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